This article is about Aluminum Welded Pipe (GB/T 3880 Alloy 5083) and technical specification based on international codes and standards of ASME B36.10M.
Aluminum Welded Pipe (GB/T 3880 Alloy 5083) | ASME B36.10M
| Scope Description | Aluminum, welded, process pipe. Formed and straight, longitudinal seam welded, round, plain-end tube. |
| Dimensional Specification | ASME B36.10M or ASME B36.19M except that the pipe wall thickness shall be as specified in the purchase order and Table 1 of this specification. |
| Purchase Order | See purchase order for DN or NPS, wall thickness, lengths in meters or feet, and delivery and shipping instructions. |
| Lengths | Pipe shall be supplied in random lengths that shall be made as long as possible, but shall be a minimum of 1.5 m (5 ft). Specified or cut lengths shall be as specified in the purchase order, and length tolerances shall be in accordance with GB/T 4436 or ASTM B 547/B 547M. |
| Tolerances | GB/T 4436 or ANSI H35.2 or H35.2(M), Section 16. For pipe sizes greater than DN150 (NPS 6) tolerances shall be as DN150 (NPS 6) except:
• Outside Diameter = +0.5%. • Out of Roundness = 1% (maximum-to-minimum diameter). • Wall thicknesses = +0.25 mm (0.01 in) deviation from nominal thickness of base material (plate) as purchased. |
| Drawings
|
Not required |
| Calculations | Not required |
| Chemical Composition | GB/T 3190, Alloy 5083 |
| Mechanical Strength | GB/T 3880, Alloy 5083, Temper H112 |
| Welding | Welding procedure sheets, procedure qualification reports, and welders qualification reports shall be approved by Company prior to manufacture. |
| Heat Treatment | GB/T 3880, Alloy 5083, Temper H112 |
| Inspection | ASTM B 547/B 547M.
Company inspection is not required, unless specified in the purchase order. |
| Testing | ASTM B 547/B 547M. Pneumatic and hydrostatic tests are not required. Additional tests are not required. |
| Examination | ASTM B 547/B 547M. All pipe in the final condition, even when it contains only a single weld, shall have all welds 100% radiographically examined, using X-radiation, in accordance with JB 4730, except that the criteria for acceptance shall be as required by GB50316, Paragraph 3.2.5 for a weld joint quality factor (Ej) equal to 0.9. |
| Certification | Mill certificate. Certification shall also include results of radiographic examination, all quality assurance, and test data. The certificate shall refer to the unique pipe number. |
| Marking | ASTM B 547/B 547M and ASTM B 666/B 666M. Marking shall also include the heat identification, a unique number for each pipe length at a distance of 300 mm (12 in) from one end, and the CAD Commodity Code (also see 4WPI-M00001). |
| Protection | ASTM B 547/B 547M. |
| Color Coding | Not required |
| Packing | Suitable packing shall be provided to ensure that all items arrive at the contractual point of delivery in an undamaged condition. Refer to the purchase order for specific packing standards and instructions. |
| Special Requirements | The hydrogen content of the product shall not exceed 0.3 ppm by mass. The finished product shall be suitable for welding. Seamless aluminum pipe per 4WPI-MCAP06 with the same wall schedule or thickness may be substituted for welded pipe in accordance with this specification. |
Note: This engineering specification shall be used in conjunction with General Piping Material Purchase Specification.